Photophore
The Standart Electrical Dictionary · 1892 · p. 6
An instrument for medical examination of the cavities of the body. It includes an incandescent lamp mounted in a tube with a concave mirror and convex lens.
Bu kavram başka kaynaklarda da geçiyor
Stedman's Medical Dictionary: A Practical Medical Dictionary (1920)
French-English Dictionary of Military Terms (1918)
Hawkins' Electrical Dictionary (1915)
The American Illustrated Medical Dictionary (1913)
An Illustrated Dictionary of Medicine, Biology and Allied Sciences (1907)
The American Dictionary and Cyclopedia
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